US Lifts Export Controls on Anthropic's Claude Fable 5 and Mythos 5 AI Models
The Trump administration lifted export controls on Anthropic's two most powerful AI models after they were suspended for national security concerns in mid-June. The company is now restoring global access to Fable 5 and Mythos 5, ending a dramatic standoff between the AI startup and the government.
Export Controls Lifted
The US Department of Commerce lifted export controls on Anthropic's Claude Fable 5 and Mythos 5 models on June 30, with Anthropic beginning to restore access from July 1. The Trump administration told Anthropic late Tuesday it is lifting export controls on the Mythos 5 and Fable 5 models allowing the company to restore broader access to some of its most powerful artificial intelligence systems and ending a closely watched standoff.
What Led to the Suspension
The U.S. government ordered Anthropic to take down its new AI models, Claude Fable 5 and Mythos 5, just three days after their public launch on June 12, 2026, citing national security and export control powers. The trigger was a cybersecurity finding after Amazon researchers reported a way to bypass Fable 5's safeguards, a technique known as a jailbreak, prompting the model to identify software vulnerabilities.
Restoration and Updates
Fable 5 returns globally on July 1 across Anthropic's platforms, while Mythos 5, which shares the same underlying model but carries fewer safety restrictions, is being restored to a set of U.S. organizations after government approval on June 26. Fable 5 will be available to global users on the Claude platform, Claude.AI, and Claude Code starting Wednesday, and will be included for up to 50% of weekly usage limits through July 7 for users of the Pro, Max, Team, as well as selected enterprise plans.
Broader Impact
The crackdown on Anthropic was gaining criticism from a number of tech executives and investors, in part because it handed valuable time to Chinese open-source developers that are trying to catch up. Anthropic said it is working with Amazon, Microsoft, Google and other Glasswing partners on a common framework for assessing AI jailbreaks, including when a bypass is serious enough to require new safeguards or other action from model developers.